<nz-timeline>
  <nz-timeline-item>Create a services site 2015-09-01</nz-timeline-item>
  <nz-timeline-item>Solve initial network problems 2015-09-01</nz-timeline-item>
  <nz-timeline-item>Technical testing 2015-09-01</nz-timeline-item>
  <nz-timeline-item>Network problems being solved 2015-09-01</nz-timeline-item>
</nz-timeline>
